| prev | Assigned Values For Variables 2.Area of circle with Operator Precedence (17.6.2009) /* Program# 2 date : 10-12-2008 Area of circle */ #include <stdio.h> main(){ float r,p,c; r=5.0; p=3.14; c=p*r*r; printf("\nArea of circle : %.1f\n",c); } output: Area of circle : 78.5 Things to note: In this program,area of circle is calculated using the given values.There are two multiplication operators found in a single expression, they are evaluated from left to right, that is first (p*r) is evaluated and the result is multiplied again with r,which is to say p*r*r is evalauted as (p*r)*r.Remember ( ) has highest precedence.The hierarchy of commonly used operators is shown below.
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